Improvement in horseshoes



' R. B. HUGUMN.

Horseshoe. No. 199,830. Patented Jan. 29,1878.

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UNITED STATES ROBERT B. .HUGUN N,

PATENT OFFICE.

on NEW YORK, N. Y."

IMPROVEMENT IN HORSESHOES.

Specification forming part. of Letters Patent NO. I 99,830, datedJanuary 29, 1878; application filed January 14, 1878.

I side piece outwardly in anangular or curved direction on its'innerside and along the front,

' terminatingnear the center of the calk, midway between its two ends,(see Figures 2 and 4,) the said lip being a thinner and imder continnation of the side piece of the shoe, arranged to accommodate adownward-projecting calk of any required length; (the extending anduniform thickness oflip, with a continuous front opening between thelips, and the abrupt termination of the side of the shoe at theconnection with the lip, are shown by me, but not claimed, in my patentof July 31, 1877, upon which this part of my invention is animprovement;) the object being to afford efficient sup-. port to thelong lip and downward-projecting portion of the same in its connectionwith the side piece of the shoe, and prevent its being broken off by asudden blow upon the calk,-as in striking. a stone, and durability.

. My invention further consists in the use of a button-pivot, working incorresponding cavitiesin each of the hinging parts of the shoe; theobject being durability and strength of construction, and to take theworking strain offoftherivet. l

j 'My invention further consists in combining, with the outer flange orrib, the bevel extendingdownward and outwardly from the upper surface ofthe shoe; the object being to forma surface or sort of .groove aroundthe outer upper surface of the shoe for the inner and outer sides of theshell of the hoof to rest in, and, when the latter is thoroughly nailedthereto, giving the parts of the shoe eflicient support against the hooffrom both its, inner, and outer sides (See Figs. 1 and 10.)

.Myinvention further consists in the use, in

connection with hinged or expanding shoes,

of the removable expanding bolt and hollow projecting nut; the objectbeing to enable the application and removal of the bolt after the shoehas been nailed to the animals foot.

Fig. 1 is a front elevation, showing the toe-calk lip, the strengtheningprojection extending part way around the lip from the side of the shoe;also the front division between the two parts of the shoe, with theouter end of the lip, upon which the side piece of the shoe rests and issupported; also shows the combined flange and outward bevel, togetherwith pivot, rivet, andwasher. Fig. 2 is a detailed view of the hingingparts of the shoe, showing the upper construction. of my extendedcalk-lip, with its supporting projection, the button-pivot cavities,button-pivot, rivet,

and washer disconnected; also the curved hinged termination, with therivet as the center. Fig. 3 is a cross-sectional view of hinging parts,showing application of button-pivot. Fig. 4 is a front view, showingcalk, calk-lip, and strengthening projection ready for the lapping onand securing of the other removed side piece. Fig. 5 is an upper view ofthe calk-lip, showing the strengthening connection with an angular innerside, instead of the old curve shown in Fig. 2, the line S S, as. inFig. 2, showing the end of the plate or side proper, and the amount ofsupport given by .the strengthening projection, S S being the underinner side line of the lip. Fig. 6 is a transverse cross-sectional viewof the shoe cut in halves between front and rear, showing the combinedflange and outer upper bevel, and the application of the single-threadedexpanding bolt. Fig. 7 is a view of the double screwthreaded removableexpandin g bolt, constructed upon the same general plan as the singlebolt, only using two nuts. Fig.8 is an elevation of a heel-calk, havinga hole for the bearing of removable bolt. Fig. 9 is a rear view of myshoe, showing the general plan of rear construction of the calk-lip andhinging connections. Fig. 10 is a front view of the same shoe, showingthe groove produced by the combined outward bevel and flange, point ofthe rivet, the washer the strengthening pro jection, also the oldhinge-curve.

Ais'one of the side pieces of my hinged shoe, having calk-lip withstrengthening projection, a connection between this extended calk-lipand the end of the side piece of the shoe, and also having the outerbevel and flange. A is the side piece opposite to A, having the outwardbevel and flange, and a hin gin g projection at its front end,correspondin g with the receptacle for it on the opposite part. Thishinging projectioin as shown, is a plain surface, and rests upon acorresponding plain supporting-surface on the upper side and theextended end of the lip, to which it is attached by a rivet. The hinging end is shown with a curve, though in this particular it would not addto the merits or demerits of the shoe if the hinge end be made on anangle corre sponding to Fig. 5.

It will be observed that the rear or pivot curve is not followed in thecurve called the hinge-curve. This change is made by me to accommodate agreater rear breadth of the lip when used for a wearing-surface for asummer shoe. It is only shown moderately in the drawings, but is capableof being used to give the lip any desired width on its rear side.

B is the toe-calk lip, used also as awearingsurface for a summer shoe.It is made thinner than the plate, as shown in the dotted line in Fig. land in Fig. 3, and from the under side of its connecting-plate itprojects forward in the general direction of the parts of the shoe whenunited, sufficiently to accommodate any required length of toe-calk. Itsconnection with. the plate A, on its under side, is strengthened,stiffened, and supported by a strengthening projection, extending fromthe end of the plate A over its surface and around its front, as shownin Fig. 2, rendering this long lip, which would otherwise be very weakat its point of connection,-as strong there and as little liable tobreak from blows on the calk as any other part of the shoe. Supported,as it is, by the strengthening projection connecting it with the side,and being otherwise supported by its calk around its front, it can bemade very thin, and the shoe correspondingly light, requiring in thiscase but sufficient thickness to securely hold the rivet from" breakingaway.

0 is a button-pivot, used in connection with corresponding cavities onthe hinging-lips, the parts being held together against the button by arivet or some other equally suitable mode of fastening. This buttontakes the working strain off of the rivet, and prevents lost motion inthe working parts by the wearing of this rivet. The button I is punchedout, s'waged into shape, and the cavities are counterbored. E and D arethe washer and countersunk rivet used in securing the parts of the shoe.

F is a toe-calk, dropped out of bar-steel or wrought -iron, with the lipand side A, or made of cast-steel, malleable iron, or, in certain cases,of cast-iron, in which case the calk is chilled to obtain hardness anddurability.

Gr G are heel-calks, made in the same manner with the shoe, or put onafterward, &c.

H H are the hinge-curved ends of the plates A A, with rivet D as thecenter. The curve H is the shape of the inner side of the strengtheningprojection.

H is a strengthening projection between the lip B and the plate A, beingpreferably curved on its inner side, or arched, to better resist a blowdelivered on the calk F or lip B, this curve being considered by measthe best form to strengthen the projection on its inner side. Theopposite hinging end of the plate A is constructed to conform to it.

I am well aware that the curve itself, in a hinged shoe, is old.

I is the front joint, continuing downward and around to the outward endof the lip, upon which the side piece A rests, being the outward jointbetween the two, as arranged.

J J are a combined flange or rib, and an outside bevel, used inconnection with each other to form surfaces to confine thehoof andsupport the shoe from either side, relieving the nails from blowsdelivered on either side of the shoe. In a solid shoe this isunnecessary to support the nails, they acting together. In a hinge-shoe,the ends being free, the nails from one side afford little resistance toblows given upon the other. K and L are upper and lower bevels on thesurfaces of the shoe. M is a hollow projecting nut, made open betweenthe part upon which the thread is cut and-the bearing end, or cored out.

N is a screw-bolt, working in and through the thread cut in the nut M.This bolt is made both single and double, as shown in Figs. 6 and 7.When double it has a right and left thread, and uses two hollowexpanding nuts, with a bearing on the outside end of each nut.

O is a hollow cavity, in which the end or ends of the bolt N work in thenut projection M. P P are hearings on the ends of the expanding boltproper. (Shown in Figs. 6 and 7.) Q is a flattened end, used on the endsof the hollow nuts, as one way of locking the same.

It is a nut-locking projection on the inner side of the heel-calk,against which the flat surface Q rests, holding the nut from turningwhile screwing out the bolt. Of course, this bolt-nut can be held by anyother preferred plan equally as well, perhaps.

S S is the line showing the inner end of the shoe side piece A beforethe strengthening projection H is applied to strengthen the junction ofthe lip B with the plate. The projecting calk F of the plate B givesgreater durability to the plate B and the holding-surface, for retainingthe head of the rivet D, used to hinge the two parts together.

Having described my invention and its objects, I claim- 1. In a hingedhorseshoe, the combination of the side piece A, provided with the lip B,calk F, and strengthening projection H, constructcd, substantially asdescribed, with the side piece A, the two being united by a rivet,

arranged to form a groove or concave surface,

to confine and hold the inner and outside surface, of the hoof, andsupport the shoe and shoe-nails, substantially as and for the purposesspecified.

4. In combination with a hinged or expanding shoe, the removable hollowprojecting nut M and expanding bolt N, having bearings P P,substantially as and for the purposes specified. 1

BOBT. B. HUGUNIN.

Witnesses:

GEO. F. GRAHAM, JNo. D. PATTEN.

